Update Pepper interface for EME

ppapi/api/private/ppb_content_decryptor_private.idl

Index: ppapi/api/private/ppb_content_decryptor_private.idl
diff --git a/ppapi/api/private/ppb_content_decryptor_private.idl b/ppapi/api/private/ppb_content_decryptor_private.idl
index e4dfd4f1420d1ed90706b7ed887c6ed40ec95f78..0394eeee5036d40250edfffef625b60ccb0b8486 100644
--- a/ppapi/api/private/ppb_content_decryptor_private.idl
+++ b/ppapi/api/private/ppb_content_decryptor_private.idl
@@ -46,6 +46,19 @@ interface PPB_ContentDecryptor_Private {
       [in] PP_Var web_session_id);
 
   /**
+   * A promise has been resolved by the CDM.

[ddorwin, 2014/08/22 20:49:21]

These versions that have specific purposes should probably have a
differentiating part of the comment.

[jrummell, 2014/08/25 21:54:37]

Done.

+   *
+   * @param[in] promise_id Identifies the promise that the CDM resolved.
+   *
+   * @param[in] key_ids A <code>PP_Var</code> of type
+   * <code>PP_VARTYPE_ARRAY</code> containing the session's usable key IDs.

[ddorwin, 2014/08/22 20:49:21]

Do we need to define the element type?

[jrummell, 2014/08/25 21:54:37]

Not sure. I can't find any other IDL files returning PP_VARTYPE_ARRAY. Updated
comment.

+   */
+  void PromiseResolvedWithKeyIds(
+      [in] PP_Instance instance,
+      [in] uint32_t promise_id,
+      [in] PP_Var key_ids);

[ddorwin, 2014/08/22 20:49:21]

key_ids_array?

[jrummell, 2014/08/25 21:54:37]

Done.

+
+  /**
    * A promise has been rejected by the CDM due to an error.
    *
    * @param[in] promise_id Identifies the promise that the CDM rejected.
@@ -97,6 +110,37 @@ interface PPB_ContentDecryptor_Private {
       [in] PP_Var destination_url);
 
   /**
+   * The keys for a session have changed.
+   *
+   * @param[in] web_session_id A <code>PP_Var</code> of type
+   * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute of

[ddorwin, 2014/08/22 20:49:21]

ditto here and below.

[jrummell, 2014/08/25 21:54:37]

Done.

+   * the session that has a change in keys.
+   *
+   * @param[in] has_additional_usable_key A <code>PP_Bool</code> indicating if
+   * a new usable key has been added.
+   */
+  void SessionKeysChange(
+      [in] PP_Instance instance,
+      [in] PP_Var web_session_id,
+      [in] PP_Bool has_additional_usable_key);
+
+  /**
+   * The expiration time for a session has changed.
+   *
+   * @param[in] web_session_id A <code>PP_Var</code> of type
+   * <code>PP_VARTYPE_STRING</code> containing the session's ID attribute of
+   * the session that has a new expiration time.
+   *
+   * @param[in] new_expiry_time A <code>PP_Time</code> indicating the new
+   * expiry time of the session. The value is defined as the number of seconds
+   * since the Epoch (00:00:00 UTC, January 1, 1970).
+   */
+  void SessionExpirationChange(
+      [in] PP_Instance instance,
+      [in] PP_Var web_session_id,
+      [in] PP_Time new_expiry_time);
+
+  /**
    * The session is now ready to decrypt the media stream.
    *
    * Note: The above describes the most simple case. Depending on the key